* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #1a2b3c;
}

a { text-decoration: none; }
ul li { list-style: none; }
img, input { border: 0; }

/* 深蓝地球仪 + 金橙/青蓝动感飘带（广东国际车展 logo） */
.dl_bg {
    min-height: 100vh;
    background:
        linear-gradient(120deg, rgba(6, 18, 55, 0.94) 0%, rgba(10, 42, 107, 0.78) 48%, rgba(8, 28, 72, 0.92) 100%),
        radial-gradient(ellipse 90% 70% at 72% 28%, rgba(61, 180, 230, 0.22), transparent 55%),
        radial-gradient(ellipse 60% 50% at 18% 78%, rgba(240, 160, 32, 0.16), transparent 50%),
        linear-gradient(160deg, #061237 0%, #0a2a6b 42%, #071a45 100%);
    position: relative;
    overflow: hidden;
}

.dl_atmosphere {
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            -22deg,
            transparent,
            transparent 48px,
            rgba(255, 255, 255, 0.018) 48px,
            rgba(255, 255, 255, 0.018) 49px
        );
    pointer-events: none;
    animation: dl_drift 28s linear infinite;
}

@keyframes dl_drift {
    from { transform: translateX(0); }
    to { transform: translateX(-48px); }
}

.dl_glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
    opacity: 0.55;
}

.dl_glow_a {
    width: 420px;
    height: 420px;
    left: -80px;
    top: -60px;
    background: rgba(240, 160, 32, 0.32);
    animation: dl_pulse 7s ease-in-out infinite;
}

.dl_glow_b {
    width: 520px;
    height: 520px;
    right: -120px;
    bottom: -100px;
    background: rgba(61, 180, 230, 0.38);
    animation: dl_pulse 9s ease-in-out 1s infinite reverse;
}

@keyframes dl_pulse {
    0%, 100% { transform: scale(1); opacity: 0.45; }
    50% { transform: scale(1.12); opacity: 0.7; }
}

/* logo 飘带动感 */
.dl_swoosh {
    position: absolute;
    height: 3px;
    border-radius: 3px;
    pointer-events: none;
    opacity: 0.75;
    filter: blur(0.2px);
}
.dl_swoosh_gold {
    width: 42%;
    top: 22%;
    left: -8%;
    background: linear-gradient(90deg, transparent, #f0a020, #e87820, transparent);
    transform: rotate(-18deg);
    animation: dl_swoosh_move 4.5s ease-in-out infinite;
}
.dl_swoosh_cyan {
    width: 48%;
    bottom: 26%;
    right: -10%;
    background: linear-gradient(90deg, transparent, #3db4e6, #1a4fa8, transparent);
    transform: rotate(-18deg);
    animation: dl_swoosh_move 5.2s ease-in-out 0.8s infinite reverse;
}
@keyframes dl_swoosh_move {
    0%, 100% { opacity: 0.35; transform: rotate(-18deg) translateX(0); }
    50% { opacity: 0.9; transform: rotate(-18deg) translateX(24px); }
}

/* 车展速度线 */
.dl_carline {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 18%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(240, 160, 32, 0.55), rgba(61, 180, 230, 0.55), transparent);
    box-shadow: 0 0 24px rgba(61, 180, 230, 0.35);
    animation: dl_speed 3.2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes dl_speed {
    0% { transform: translateX(-30%) scaleX(0.4); opacity: 0; }
    35% { opacity: 1; }
    100% { transform: translateX(40%) scaleX(1.2); opacity: 0; }
}

.dl_shell {
    position: relative;
    z-index: 1;
    max-width: 460px;
    margin: 0 auto;
    padding: 7vh 20px 40px;
    animation: dl_rise 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes dl_rise {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}

.dl_brand {
    text-align: center;
    margin-bottom: 26px;
    color: #fff;
}

.dl_brand img {
    height: 72px;
    max-width: 92%;
    width: auto;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 10px;
    padding: 8px 14px;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.35));
    animation: dl_logo 0.9s ease-out 0.12s both;
}

@keyframes dl_logo {
    from { opacity: 0; transform: scale(0.88) translateY(8px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.dl_eyebrow {
    margin-top: 18px;
    font-family: "Montserrat", "Noto Sans SC", sans-serif;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: rgba(61, 180, 230, 0.98);
    text-transform: uppercase;
    line-height: 1.45;
    padding: 0 8px;
}

.dl_brand h1 {
    margin-top: 8px;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #fff;
    text-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
    line-height: 1.35;
}

.dl_sub {
    margin-top: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.68);
    letter-spacing: 0.35em;
}

.dl_main {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 18px;
    padding: 30px 30px 22px;
    box-shadow:
        0 24px 60px rgba(6, 18, 40, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.dl_type {
    display: flex;
    gap: 8px;
    margin-bottom: 22px;
    border-bottom: 1px solid #e4ecf5;
}

.dl_type li {
    flex: 1;
    text-align: center;
    padding: 12px 0;
    font-size: 15px;
    color: #7a8a9a;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
}

.dl_type li.sel {
    color: #0a2a6b;
    font-weight: 600;
}

.dl_type li.sel::after {
    content: "";
    position: absolute;
    left: 18%;
    right: 18%;
    bottom: -1px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, #f0a020, #3db4e6);
}

.dl_ul {
    min-height: 250px;
}

.dl_ul li {
    margin-bottom: 18px;
}

.dl_ul .txt {
    width: 100%;
    height: 50px;
    line-height: 48px;
    padding-left: 52px;
    border: 1px solid #d0dbe8;
    border-radius: 12px;
    font-size: 15px;
    outline: none;
    background-color: #f5f8fb;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.dl_ul .txt:focus {
    border-color: #2a7de1;
    box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.14);
    background: #fff;
}

.txt::-webkit-input-placeholder { color: #a8b4c4; }

.dl_ul .txt_hao {
    background-image: url(/denglu/images/t1.png);
    background-repeat: no-repeat;
    background-position: 16px center;
    background-size: 22px;
}

.dl_ul .txt_pwd {
    background-image: url(/denglu/images/t2.png);
    background-repeat: no-repeat;
    background-position: 16px center;
    background-size: 22px;
}

.dl_ul .li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 13px;
    color: #6b7c8f;
}

.lb_dl {
    cursor: pointer;
    user-select: none;
}

.li_yzm {
    display: flex;
    gap: 10px;
    align-items: stretch;
}

.li_yzm .txt {
    flex: 1;
}

.btn_yzm {
    width: 128px !important;
    flex-shrink: 0;
    font-size: 14px !important;
    letter-spacing: 1px !important;
    font-weight: 600 !important;
    padding: 0 8px;
    background: linear-gradient(135deg, #3db4e6 0%, #1a4fa8 100%) !important;
    box-shadow: 0 6px 16px rgba(26, 79, 168, 0.28) !important;
}

.dl_ul .btn {
    width: 100%;
    height: 50px;
    line-height: 50px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, #e87820 0%, #f0a020 45%, #1a4fa8 100%);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 6px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
    box-shadow: 0 10px 24px rgba(26, 79, 168, 0.38);
}

.dl_ul .btn:hover {
    filter: brightness(1.06);
    box-shadow: 0 12px 28px rgba(232, 120, 32, 0.4);
}

.dl_ul .btn:active {
    transform: translateY(1px);
}

.dl_foot {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.42);
    letter-spacing: 0.12em;
}

.dl_err {
    margin: 0 0 14px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.28);
    color: #c0392b;
    font-size: 13px;
    line-height: 1.4;
}

.dl_shake {
    animation: dl_shake 0.4s ease;
}

@keyframes dl_shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.banner { text-align: center; }
.banner img { height: 45px; }
.a_wj { color: #1a5fb4; font-size: 13px; }

@media (max-width: 480px) {
    .dl_brand h1 { font-size: 20px; letter-spacing: 0.04em; }
    .dl_brand img { height: 56px; }
    .dl_main { padding: 22px 18px 16px; }
    .btn_yzm { width: 110px !important; font-size: 13px !important; }
    .dl_eyebrow { letter-spacing: 0.06em; font-size: 9px; }
}